1QEMU-GA(8)                           QEMU                           QEMU-GA(8)
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NAME

6       qemu-ga - QEMU Guest Agent
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SYNOPSIS

9       qemu-ga [OPTIONS]
10

DESCRIPTION

12       The  QEMU Guest Agent is a daemon intended to be run within virtual ma‐
13       chines. It allows the hypervisor host to perform various operations  in
14       the guest, such as:
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16       • get information from the guest
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18       • set the guest's system time
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20       • read/write a file
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22       • sync and freeze the filesystems
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24       • suspend the guest
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26       • reconfigure guest local processors
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28       • set user's password
29
30       • ...
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32       qemu-ga  will  read  a system configuration file on startup (located at
33       /etc/qemu/qemu-ga.conf by default), then parse remaining  configuration
34       options  on  the  command line. For the same key, the last option wins,
35       but the lists accumulate (see below for configuration file format).
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OPTIONS

38       -m, --method=METHOD
39              Transport method: one of unix-listen, virtio-serial, or  isa-se‐
40              rial, or vsock-listen (virtio-serial is the default).
41
42       -p, --path=PATH
43              Device/socket  path  (the default for virtio-serial is /dev/vir‐
44              tio-ports/org.qemu.guest_agent.0, the default for isa-serial  is
45              /dev/ttyS0).  Socket  addresses  for vsock-listen are written as
46              <cid>:<port>.
47
48       -l, --logfile=PATH
49              Set log file path (default is stderr).
50
51       -f, --pidfile=PATH
52              Specify pid file (default is /var/run/qemu-ga.pid).
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54       -F, --fsfreeze-hook=PATH
55              Enable fsfreeze hook. Accepts an optional argument  that  speci‐
56              fies  script  to  run on freeze/thaw. Script will be called with
57              'freeze'/'thaw' arguments accordingly (default is  /etc/qemu/fs‐
58              freeze-hook).  If  using  -F  with an argument, do not follow -F
59              with a space (for example: -F/var/run/fsfreezehook.sh).
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61       -t, --statedir=PATH
62              Specify the directory to store state information (absolute paths
63              only, default is /var/run).
64
65       -v, --verbose
66              Log extra debugging information.
67
68       -V, --version
69              Print version information and exit.
70
71       -d, --daemon
72              Daemonize after startup (detach from terminal).
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74       -b, --blacklist=LIST
75              Comma-separated  list  of  RPCs to disable (no spaces, ? to list
76              available RPCs).
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78       -D, --dump-conf
79              Dump the configuration in a format compatible with  qemu-ga.conf
80              and exit.
81
82       -h, --help
83              Display this help and exit.
84

FILES

86       The  syntax  of the qemu-ga.conf configuration file follows the Desktop
87       Entry Specification, here is a quick summary: it consists of groups  of
88       key-value pairs, interspersed with comments.
89
90          # qemu-ga configuration sample
91          [general]
92          daemonize = 0
93          pidfile = /var/run/qemu-ga.pid
94          verbose = 0
95          method = virtio-serial
96          path = /dev/virtio-ports/org.qemu.guest_agent.0
97          statedir = /var/run
98
99       The list of keys follows the command line options:
100
101                            ┌──────────────┬─────────────┐
102                            │Key           │ Key type    │
103                            ├──────────────┼─────────────┤
104                            │daemon        │ boolean     │
105                            ├──────────────┼─────────────┤
106                            │method        │ string      │
107                            ├──────────────┼─────────────┤
108                            │path          │ string      │
109                            ├──────────────┼─────────────┤
110                            │logfile       │ string      │
111                            ├──────────────┼─────────────┤
112                            │pidfile       │ string      │
113                            ├──────────────┼─────────────┤
114                            │fsfreeze-hook │ string      │
115                            ├──────────────┼─────────────┤
116                            │statedir      │ string      │
117                            ├──────────────┼─────────────┤
118                            │verbose       │ boolean     │
119                            ├──────────────┼─────────────┤
120                            │blacklist     │ string list │
121                            └──────────────┴─────────────┘
122

SEE ALSO

124       qemu(1)
125

AUTHOR

127       Michael Roth <mdroth@linux.vnet.ibm.com>
128

130       2021, The QEMU Project Developers
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1355.2.0                            May 19, 2021                       QEMU-GA(8)
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